Febmutation lock



Aug. 28, 1928.

A. ENOS PERIUTAI'ION LOCK Filed m. 23, 1926 2 Sheets-Sheet. 1

INVENTO sawwaeeva ATTbRNEY Aug. 28, 192&

A. ENos ""rnaku'rnmn LOCK Filed Dec. 23, 1926 2 Sheets-Sheet.

' ATTORNEY. Y

Patented Aug. 28, 1928 U ITE STATEs ALEXANDER ENDS, F SEATTLE; WASHINGTON PERMUTATION LOCK.

. Application filedDecember 23, 1926'. Serial No. 156,681.

with all ofthe disks so cooperating with the movable member ot'theloc-kthat certain oi the disks are locked against turning until the remaining disks have been arranged in proper combination indicating order.

A- further object of the lnvent on 18 the formation of the lock structure to provide for the convenient distribution of lubr cation to the moving parts to facilitate the lock operation. I I

. he invention is illustrated in the accompanying drawings, wherein: Figure 1 is a side elevation of my 1mproved form of lock in an unlocked or open position.

Figure 2 is a plan View otFigure 1. Figure 3 is an oppos te side elevation to Figure 1.

Figure 4 is a detail view. I Figure 5 is a detail V16WO1 the locking bolt or shackle.

Figure 6 is a modified form of lock, in side elevation. I I

Figure 7 is a detail vlew of the locking shackle for the modified form of lock.

Figure 8-is a sectional detail side elevation of the lubricating. means for the interior of the lock. V Figure 9 is a detail side elevatlonot the main body. member ofv the lock, showing the locking bolt in operative engagement therewith.

Figure 10 is a plan view 01 one of the lockin gv inembers. V

Figure 1-1 is a; sectionalvlew taken on the line 11 -11 of Figure 10.

Figure 12 is a plan View of another one of the locking members.

Figure 13 is a sectional view taken on the line 13-13 of Figure 12.

Figure 14c-is a detail plan view of a base member.

. an adjustable locking collar.-

Figure-15 is a detailperspective view of In the improved construction illustrated; the main body 1 of the lock is integrally en larged at one end to provide a head 2, the diameter of which is materially greater than that of the body 1 The head 2" is formed at diametrically opposite pointswith opening's 3 and 1, the formerjextending throu h the flange and continuing lengthwise t 10 body as a-rounded substantially semicircular chanel 8,. while the opening 1 terminates at the juncture of the head and body in a circu-' lar enlargement 4* which opens partly through the external wall of the head.

That end of the body opposite the head is centrally formed with a threaded boss 5 on which is threaded a base 15, corresponding in size and shape to the head, the base being. centrally threaded on the boss 5 through a recess 17 and being formed with an opening 16 which aligns with the opening" 3 in' the head when the base is in proper posi tlon.

The body space between the head Q'and base 15 is adapted to rotatively receive the disks for controlling the locking and release of the movable part of the lock and as it is desirable that these parts shall be lubricated both for convenience in operation and to preventithe accumulation of rust, the body 1 is formed with a central bore 6 opening through the head 2 and having a lat'e'ra'l channel 7 which extends to the vertical'clian nel 8 at one side of the body and to the outer wall of the body 'at'the opposite side. The lower end of the bore 6 is closed by the base and its upperend may be closed 'bya remov- .able stopper 6 ,These chanels' provide for" effective lubrication of the operatingp artsof the lock as will be evident.

Arranged in superimposed relation and for rotative movement on the body 1 intermediate the base and head is a seriestof disks 17, 18, 19 and 20. Two of these disks 17 and'19. are identical and of somewhat less thickness than the remaining disks18 and 20. The disks 17 and 19, shown particularly" in Figures 12 and 13, are each formed at an appropriate point with a semi-circular recess 21, which recess extends throughout the thickness of the disk and, when arranged to register with the channel 8 in the body, forms a circular opening. The disks 1 8 and 20, shown more particularly in Figures 10 and 11, have a central annular flange 22 1 0 formed with recesses 23 corresponding in size and shape to the recesses 21 in the disks with a projection 26 which corresponds in size and shape to the recesses 21 and 23. The guard ring is designed to overlie the flange 22 with the projection 26 depending into one of the recesses 23, so that the body of the guard ring provides an upper wall for all of the recesses 23 of the disks 18 and 20 except that particular recess 23 with which the recess of the guard ring is in registry.

Mounted for rotative movement in the enlargement 4 of the opening 4 in the head is a long leg and a short leg. diameter corresponding to or slightly less central disk 16 having a central opening 13 and an inwardly extending radially disposed lug 14, the opening 13 registering with the ,opening 4, and the edge of the disk 16 projecting through the side of the head 2 to permit rotative movement of the disk.

The remaining or movable member of the lock is in the form of a shackle 9 having a The long leg has a than the opening 3 in the body and is formed with cut-away portions to leave diametric projections 10, 11 and 12, as is usual in this type of lock. The short leg of the movable member is formed with a vertically extending channel 14* of a size to receive the lug 14 and with an annular channel 13 with which the channel 14 communicates, the channel 13 being also of a size to permit movement of the lug 14 therein.

The lower portion of the opening 8 in the head is enlarged at 3 to permit desired play of a pin 3 removably secured transversely of the long leg of the shackle 9 when the parts are assembled, this arrangement permitting the necessary movement of the shackle without permitting it being wholly withdrawn from the body.

When assembled in looking position, the

long leg of the shackle passes through the opening 3 and through the disks 20. 19, 18

and 17 in succession. When locked, the projection 10 of the shackle leg rests in a recess 23 of the flange 22 of the upper disk 20 and above the upper surface of the disk 19. The projection 11 of the shackle leg rests in a re cess 23 of the flange 22 of the disk 18 and immediately above the upper surface of the disk 17, while the projection 12 rests below the lower surface of the disk 17.

Assuming it is desired to unlock the movable member or shackle, the disk 16 is first turned to a predetermined position indicated by the alignment of a particular number thereon with the line C marked on the body,

whereupon the projection 1 1 of the disk 16 10 and 11 of the long leg of the shackle. The

shackle is now moved inwardly, the opening 16 in the base permittingthis movement, and in the downward movement, the projections 10 and 11 are removed from the recesses 23 of the disks 18 and 20. These disks, which have been heretofore locked by the long leg of the shackle, are now free to be turned and, when adjusted according to the predetermined numbers as brought into alignment with the line A, the disks willbe so disposed that that recess 23 which is aligned with the recess 25 of the locking ring will be brought into line with the projections 10 and 11, and the latter are free to move upwardly to the limit permitted by the pin 3 This upward movement is suflicient to raise the short leg of the shackle above the head 2 when the shackle may be turned on the long leg as an axis to free the element connected to such shackle.

As the long leg moves upwardly to tree the short leg, the projections 11 and 12 enter the recesses in the rings 17 and 19, thus maintaining the rings in properly aligned positions during the opening movement of the lock and permitting the restoring of the parts for locking operation without the necessity of again adjusting the disks.

An important feature of the guard rings 24 is that they permit a convenient change of the combination at which the lock may be opened, for obviously such rings may be disposed in any relation to the disks with which they cooperate so that the recesses 25 of the rings may register with any recesses 23 ot the disks.

WVhat I claim as new is: V

1. In a permutation lock, a shackle member, a. main body in which the shackle member is slidably mounted a plurality of disks for controlling movement of the shackle member, each of the disks being formed wit-h recesses adapted, when the disks are aligned, to provide a passage for the movement of the shackle member, and guard rings carried by certain of the disks to determine which of the recesses of said disks shall be open to the passage of the shackle member.

2. In a permutation look, a shackle member, a main body in which the shackle member is slidably mounted, a plurality of disks for controlling movement of the shackle member; each of the disks being formed with recesses ada pted, when the disks'are aligned,

to provide ai passage for the movement of the shackle member, and guard rings carried by certain of thedisks to'determinewhich of the recesses of said disks'shall be open to the pars sage of the'shackle member, said guard rings being interlocked-with the disks.

3. In a permutation look, a shackle member, a main body in which the shackle member is slidably mounted, a plurality of disks for controlling movement of the shackle member, each of the disks being formed with recesses adapted, when the disks are aligned, to provide a passage for the movement of the shackle member, and guard rings carried by certain of the disks to determine which of the recesses of said disks shall be open to the passage of the shackle member, said guard rings being adjustably interlocked with the disks to selectively determine the open recess of said disks.

4. In a permutation lock, a shackle member, a main body in which the shackle member is slidably mounted, and a plurality of disks for controlling movement of the shackle member, each of the disks being formed with recesses adapted, when the disks are aligned, to provide a passage for the movement of the shackle member, the recesses of certain of the disks being closed against the upward passage of the shackle except for a selected recess, the shackle member normally interlocking with and prevent rotative movement of such disks.

5. In a permutation look, a shackle member recessed to form projections, a body in which the recessed portion of the shackle member is slidably mounted, and a plurality of disks mounted for rotative movement on the body and formed with recesses adapted, when aligned, to form independent longitudinal openings for operation of the shackle member, the recesses of alternate disks serving to normally interlock with the projections on the shackle member to prevent rotative movement of the disks, the remaining disks being free for rotative movement, the interlocked disks being provided with guard rings cooperating therewith and closing the recesses therein except for a selected recess, whereby on selective adjustment of the free rings, the projections on the-shackle member may be removed from the locked rings to permit adjustment of the latter to provide for the uninterrupted longitudinal movement of the shackle. a

6. In a permutation lock, a body member. a shackle movable longitudinally in the body member, and a plurality of disks rotatable on the body and formed with recesses adapted, when aligned to form longitudinal openings for movement of the shackle relative to the body, certain of the rings being locked against rotative movement by the shackle until the 'reriiaining rings have been adjusted topermita-mov'ement of the shackle in oppositionto'its openingmovement.

'7. In a permutation lock, a body member, a shackle movable longitudinally in the body memben'an'd' a plurality of disks rotatable on the body and formed with recesses adapted, when aligned, to form "long-itdd inal openings for movementof the shackle relative to the body, certain of the rings being freely rotatable on the body and each formed with a single recess, the remaining rings being formed with a plurality of recesses closedat their upper ends with the exception of one recess, the closed end recesses being normally engaged by the shackle to hold said rings against rotative movement until the free rings have been adjusted to permit a relative endwise movement of the shackle.

8. In a permutation look, a body, a shackle having one leg thereof recessed to provide a series of projections, and rings rotatably mounted on the body, certain if the rings containing a single recess adapted to form an opening for the movement therethrough of the projections on the shackle, the remaining rings being formed with a plurality of recesses adapted to normally receive the projections on the shackle to lock the said rings against rotative movement, the said recesses being closed at their upper ends to prevent longitudinal movement of the shackle in one direction, the locked rings being also formed with a recess opening therethrough to e mit free passage of the projections on lhe shackle.

9. In a permutation look, a body, a shackle having one leg thereof recessed to provide a series of projections, rings rotatably mounted on the body, certain of the rings containing a single recess adapted to form an opening for the movement therethrough of the projections on the shackle, the remaining rings being formed with a plurality of recesses adapted to normally receive the projections on the shackle to lock the said rings against rotative movement, the said recesses being closed at their upper ends to prevent longitudinal movement of the shackle in one direction, and a member cooperating with each locked ring to close the upper ends of the recesses therein except in a single instance, thereby providing the locked rings with .a through recess for the passage of the projections on the shackle when the locked rings are in predetermined positions.

10. In a permutation lock, a body, a shackle having one leg thereof recessed to provide a series of projectiones, rings rotatably mounted on the body, certain of the rings containing a single recess adapted to form an opening for the movement therethrough of the projections on the shackle, the remaining rings being formed with a plurality of recesses adapted to normally receive the projections on the shackle to lock the said rings against rotative movement, the said recesses being closed at their upper ends to prevent longitudinal movement of the shackle in one direc- T tion, and a member cooperating with each locked ring to close the upper ends of the recesses therein except in a single instance, thereby providing the locked rings with a through recess for the passage of the r'ojections on the shackle when the locke rings are in predetermined positions, said member being adjustable relative to the locked ring to permitany of the recesses in the latter to be made the through recess.

In testimony whereof I affix my signature;

ALEXANDER EN OS. 

